TS78M05CP ROG Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The TS78M05CP ROG is a linear voltage regulator IC manufactured by Taiwan Semiconductor Corporation, designed to provide a fixed positive 5V output at 500mA in a surface-mount TO-252 (DPAK) package. This device is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. The TS78M05CP ROG operates across an input voltage range up to 35V with a maximum dropout voltage of 2V at full load current, incorporating current limit and over-temperature protection features.

Substiute Parts

TS78M05CP ROG

Taiwan Semiconductor CorporationIn Stock: 1001TS78M05CP ROG Datasheet

Current PartRFQ

L78M05CDT-TR

STMicroelectronicsIn Stock: 337757L78M05CDT-TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS78M05CP ROG is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Fixed output voltage of 5V
• Output current capability of 500mA
• Maximum input voltage rating of 35V
• Surface-mount TO-252 (DPAK) package configuration
• Operating temperature range of 0°C to 150°C
• Positive output configuration with single regulator

The L78M05CDT-TR manufactured by STMicroelectronics satisfies all critical parameters required for direct substitution. Both devices share identical output voltage, current rating, input voltage maximum, package type, and operating temperature specifications. The substitute part maintains functional equivalence across the specified electrical operating envelope.

Parameter Comparison

Engineering Selection Recommendations

The L78M05CDT-TR is a direct functional equivalent for the obsolete TS78M05CP ROG. Both devices are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

The primary distinction between the main part and substitute is product status: the TS78M05CP ROG is obsolete, while the L78M05CDT-TR maintains active production status. This status difference ensures long-term availability and supply chain continuity for the L78M05CDT-TR.

Both parts share identical electrical specifications across all critical parameters: 5V fixed output, 500mA output current capability, 35V maximum input voltage, and 0°C to 150°C operating temperature range. The TO-252 (DPAK) package configuration is identical, enabling direct PCB layout compatibility without redesign.

The L78M05CDT-TR is supplied in Cut Tape (CT) and Digi-Reel® packaging formats with significantly higher inventory availability (337,670 pieces in stock versus 970 pieces for the main part), supporting both prototype and production-volume requirements.

Frequently Asked Questions (FAQ)

Q: Can the L78M05CDT-TR directly replace the TS78M05CP ROG without PCB modifications?

A: Yes. Both devices use the TO-252-3 (DPAK) package with identical pinout and lead configuration. No PCB layout changes are required for substitution.

Q: Are there differences in protection features between these parts?

A: The TS78M05CP ROG includes current limit and over-temperature protection. The L78M05CDT-TR includes over-current, over-temperature, and short-circuit protection. The L78M05CDT-TR provides additional short-circuit protection capability.

Q: What is the significance of the PSRR difference (78dB versus 62dB)?

A: Power Supply Rejection Ratio (PSRR) measures the regulator's ability to reject input voltage ripple. The TS78M05CP ROG exhibits higher PSRR at 78dB compared to the L78M05CDT-TR at 62dB. Both values are within acceptable ranges for standard 5V regulation applications. Applications requiring superior noise rejection should evaluate this parameter against specific system requirements.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the TS78M05CP ROG and L78M05CDT-TR are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the difference in Moisture Sensitivity Level (MSL)?

A: The TS78M05CP ROG has MSL 3 (168 hours), while the L78M05CDT-TR has MSL 1 (unlimited). MSL 1 indicates superior moisture resistance and longer shelf life without special storage conditions.

Q: Which part should be selected for new designs?

A: The L78M05CDT-TR should be selected for new designs. It maintains active production status, offers superior availability, and provides additional protection features including short-circuit protection.

Q: Are the electrical performance characteristics identical?

A: Both parts deliver 5V fixed output at 500mA with 6mA quiescent current and operate across 0°C to 150°C. The maximum input voltage (35V) and operating specifications are identical. The PSRR specification differs as noted above.